Home / 3,976.13-5,486.96-2,207.69

Finding the Fourth Proportional to 3,976.13, 5,486.96 and 2,207.69

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Solution

The fourth proportional to 3,976.13, 5,486.96 and 2,207.69 is: 3,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.13 : 5,486.96 = 2,207.69 : x
  2. Step 2: Convert to fraction form
    3,976.13/5,486.96 = 2,207.69/x
  3. Step 3: Cross multiply
    3,976.13x = 5,486.96 × 2,207.69
  4. Step 4: Simplify right side
    3,976.13x = 12,113,495.68
  5. Step 5: Solve for x
    x = 12,113,495.68/3,976.13
  6. Step 6: Final answer
    x = 3,046.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.